Finding the Fourth Proportional to 238,403.64, 328,916.80 and 135,023.75
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Solution
The fourth proportional to 238,403.64, 328,916.80 and 135,023.75 is: 186,287.34
Step by Step Solution
- Step 1: Write the proportion equation
238,403.64 : 328,916.80 = 135,023.75 : x - Step 2: Convert to fraction form
238,403.64/328,916.80 = 135,023.75/x - Step 3: Cross multiply
238,403.64x = 328,916.80 × 135,023.75 - Step 4: Simplify right side
238,403.64x = 44,411,579,774 - Step 5: Solve for x
x = 44,411,579,774/238,403.64 - Step 6: Final answer
x = 186,287.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.